139285488 has 80 divisors (see below), whose sum is σ = 384189696. Its totient is φ = 43330560.

The previous prime is 139285483. The next prime is 139285499. The reversal of 139285488 is 884582931.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139285483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106245 + ... + 107547.

Almost surely, 2^139285488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139285488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192094848).

139285488 is an abundant number, since it is smaller than the sum of its proper divisors (244904208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139285488 is a wasteful number, since it uses less digits than its factorization.

139285488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1456 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 139285488 is about 11801.9273002336. The cubic root of 139285488 is about 518.3645461388.

The spelling of 139285488 in words is "one hundred thirty-nine million, two hundred eighty-five thousand, four hundred eighty-eight".